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LUCKY_DIMON [66]
2 years ago
10

A test organism develops a genetic mutation that causes neurons to develop without synaptic knobs. How will this impact neuronal

function\?
Biology
1 answer:
kvv77 [185]2 years ago
8 0

Answer:

The electrical signal will not be converted into chemical signal.

Explanation:

The synaptic knob is the bulbous enlargement also called synaptic terminal preset at the end of the axon.

The synaptic knob is a living cell and thus contains all the living features but they also contain the vesicles which store the neurotransmitters, therefore, synaptic knob acts as a site which converts the electrical signal into a chemical signal. The released neurotransmitter from the synaptic knob interacts with the post neuron or recipient neuron.

If the mutation develops in the neurons which result in the formation of neurons without synaptic knob therefore the electrical signal will not be converted into a chemical signal and thus signal will stop.

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Axons cross from one side of the spinal cord to the other through the
Airida [17]
<h2>Axons </h2>

Explanation:

Axons cross from one side of the spinal cord to the other through the gray commisure

  • Each arm or extension of the gray matter in the spinal cord is referred to as a horn
  • Projecting towards the back of the spinal cord are the dorsal horns (or posterior horns)
  • Projecting towards the front are the ventral horns (or anterior horns)
  • In the thoracic and upper lumbar regions of the cord, an additional pair of side projections occur, which are called the lateral horns
  • A narrow band of gray matter known as the gray commissure stretches across of the center of the spinal cord and connects the two sets of horns
  • In the middle of the gray commissure is the central canal, which contains cerebral spinal fluid
7 0
2 years ago
Select all the correct labels on the image.
valkas [14]

The diagram is not given in the question, so the diagram is attached below.

Answer:

chloroplast, thylakoid  space

Explanation:

The photosynthesis process is categorized in two steps light-dependent reactions and light-independent reactions.

In light-dependent reaction, chlorophyll absorbs one photon and loses one electron. This initiates the flow of electrons down an electron transport chain and result into reduction of NADP to NADPH.

Along with this, it creates a proton gradient or concentration across the chloroplast membrane and into the thylakoid  space. The proton concentration or energy gradient is then used by ATP synthase for the synthesis of ATP and cellular respiration.

Hence, the correct answer is chloroplast and thylakoid  space

8 0
2 years ago
Read 2 more answers
Human cells normally have 46 chromosomes. For each of the following stages, state the number of chromosomes present in the parti
Lunna [17]

Answer:

it's a I just did this, ....................

6 0
2 years ago
Which of the following genes would not likely be encoded on a plasmid?
raketka [301]

Answer:

gene encoding enzymes for glycolysis.

Explanation:

Plasmid may be defined as an extra chromosomal circular DNA that replicate independently of the main chromosomal material. Plasmid are generally used for the manipulation of genes in molecular technologies.

Plasmid can encode gene for toxins, antibacterial resistance and for the unusual substrate degradation. The plasmid cannot code enzyme for glycolysis because these enzymes are already present in the host organisms. Glycolysis enzymes are independent on the plasmid regulation.

Thus, the correct answer is option (3).

7 0
2 years ago
The biology students in Seattle bought a second fish sample at the fish market. Which tree shows what the data would look like i
kow [346]

Answer:

Receipts in the salt-water section of the Fulton Fish Market by species and by states and ... U.S. Fish & Wildlife Service, 421 BellSt. Terminal. Seattle l.Wash.). Includes landings ... Biology of the Sea Lamprey in ltd Parasitic Phase, by Phillip S. Parker and ... The second portion deals with the chemical analysis of the samples.

Explanation:

3 0
2 years ago
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